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  3. M Series Pump Duckbill Valve

Dometic M Series Pump Duckbill Valve Installation guide

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To Inspect:
1. Flush the pump with fresh water and disinfectant.
2. Close the maintenance valves (if installed) in the inlet and outlet piping.
3. Turn off/disconnect electrical source to the pump motor.
4. Disassemble the inlet/outlet anges, elbows, and valve housings.
5. Remove the four (4) duckbill valves. Replace all valves if any appear to be swollen, out of shape, torn,
scuffed, slit or show any other sign of wear.
CAUTION: Be sure to use black duckbill valves (part number 385311581) for all sewage applications.
Use red duckbill valves made of nitrile (part number 385311582) for oil-contaminated water applications.
To Install:
1. Insert the two (2) inlet valves pointing toward the pump body.
2. Insert the two (2) outlet valves pointing away from the pump body.
Dometic
®
M-Series Pump Duckbill Valve Instructions
Inlet valves
DIRECTION OF FLOW
Outlet valves
REVISION A
Form No. 600345926 11/17
©2017 Dometic Corporation
Dometic Corporation
Sanitation Division
13128 State Rt. 226
P.O. Box 38
Big Prairie, OH 44611 USA
1-800-321-9886
Fax: 330-496-3097
www.Dometic.com
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